Generally speaking, the magnetron (the component in the microwave that generates the microwave energy) won't be harmed by metal in the cavity (the cooking area). But
any metal within the cavity might act like a microwave antenna, and this may create arcs, and even start a fire within the cooking area. This will melt and burn things within
the cavity, and almost certainly damage the door, which will make the oven unsafe to use Microwave ovens work by having a device in them, a magnetron, sending out lots of microwave radiation, which are electromagnetic waves, at a frequency of about 2.45
GHz, meaning they vibrate at almost two and a half billion times a second.
When these waves come into contact with metal, they excite the electrons in the metal, which then start moving rapidly, and bounce the microwaves bounce off them.
Can we put metal containers into microwave?
The answer is probably no.
Why?
Generally speaking, the magnetron (the component in the microwave that generates the microwave energy) won't be harmed by metal in the cavity (the cooking area). But
any metal within the cavity might act like a microwave antenna, and this may create arcs, and even start a fire within the cooking area. This will melt and burn things within
the cavity, and almost certainly damage the door, which will make the oven unsafe to use
Microwave ovens work by having a device in them, a magnetron, sending out lots of microwave radiation, which are electromagnetic waves, at a frequency of about 2.45
GHz, meaning they vibrate at almost two and a half billion times a second.
When these waves come into contact with metal, they excite the electrons in the metal, which then start moving rapidly, and bounce the microwaves bounce off them.